• Letter

Element-specific field-induced spin reorientation and tetracritical point in MnCr2S4

Sh. Yamamoto, H. Suwa, T. Kihara, T. Nomura, Y. Kotani, T. Nakamura, Y. Skourski, S. Zherlitsyn, L. Prodan, V. Tsurkan, H. Nojiri, A. Loidl, and J. Wosnitza
Phys. Rev. B 103, L020408 – Published 25 January 2021
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Abstract

The ferrimagnetic spinel MnCr2S4 shows a variety of magnetic-field-induced phase transitions owing to bond frustration and strong spin-lattice coupling. However, the site-resolved magnetic properties at the respective field-induced phases in high magnetic fields remain elusive. Our soft x-ray magnetic circular dichroism studies up to 40 T directly evidence element-selective magnetic-moment reorientations in the field-induced phases. The complex magnetic structures are further supported by entropy changes extracted from magnetocaloric-effect measurements. Moreover, thermodynamic experiments reveal an unusual tetracritical point in the HT phase diagram of MnCr2S4 due to strong spin-lattice coupling.

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  • Received 4 August 2020
  • Revised 3 December 2020
  • Accepted 11 January 2021

DOI:https://doi.org/10.1103/PhysRevB.103.L020408

©2021 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Sh. Yamamoto1,*, H. Suwa2, T. Kihara3, T. Nomura1,4, Y. Kotani5, T. Nakamura3,5, Y. Skourski1, S. Zherlitsyn1, L. Prodan6,7, V. Tsurkan6,7, H. Nojiri3, A. Loidl7, and J. Wosnitza1,8

  • 1Hochfeld-Magnetlabor Dresden (HLD-EMFL) and Würzburg-Dresden Cluster of Excellence ct.qmat, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
  • 2Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
  • 3Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
  • 4Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
  • 5Japan Synchrotron Radiation Research Institute, SPring-8, Sayo, Hyogo 679-5198, Japan
  • 6Institute of Applied Physics, MD 2028, Chisinau, R. Moldova
  • 7Experimental Physics 5, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86159 Augsburg, Germany
  • 8Institut für Festkörper- und Materialphysik, TU Dresden, 01062 Dresden, Germany

  • *s.yamamoto@hzdr.de

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Issue

Vol. 103, Iss. 2 — 1 January 2021

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